Overwhelmed by stress on the eve of the college entrance exams, Chen Xi'an becomes a fan of Cheng Zifan after hearing his songs. His voice gives her strength and lights up her life. Later, when she is in college, an unexpected incident brings them together. Their feelings deepen, and they gradually become a couple. But one is a student and the other a pop star. Their seemingly unrelated lives and vastly different identities make it difficult for them to have a normal relationship. He is the moon, and she works hard to improve herself so she can catch up to him. What she never expects is that her moon is gradually drawing closer to her, too. Although they are together, she cannot withstand the online slander and the public's disapproval. She dies in the year he wins an award.
